Job Postings Filled Within 30 Days

SQL practice question · Medium · Date & Time · LinkedIn

A job counts as filled within 30 days if `filled_date` is not NULL and is at most 30 days after `posted_date`. For each posting month return `post_month` ('YYYY-MM'), `jobs_posted`, `filled_30d`, `fill_rate_pct` = ROUND(100.0 * filled_30d / jobs_posted, 1). Order by `post_month`.

Table: job_posts

Schema of job_posts
ColumnType
job_idINTEGER
companyTEXT
posted_dateDATE
filled_dateDATE
Sample rows of job_posts
job_idcompanyposted_datefilled_date
1Nimbus2026-07-032026-07-20
2Nimbus2026-07-102026-08-20
3Orbit2026-07-15NULL
4Orbit2026-07-282026-08-27
5Nimbus2026-08-012026-08-05
6Pixel2026-08-12NULL
Expected output on the sample data
post_monthjobs_postedfilled_30dfill_rate_pct
2026-074250
2026-082150

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